| 摘要 |
<p>PURPOSE:To cause a display of remained hot water to be easily acknowledged by a user when a temperature of the remained hot water is lowered down to a value near a remained hot water set temperature for judging a presence or a non-presence of the remained hot water. CONSTITUTION:A display part control means 11 calculates and displays an amount of remained hot water in correspondence with the number of temperature sensors for sensing a presence of the remained hot water counted by a remained hot water judging and calculating means 10 irrespective of positions of temperature sensors 5, 6, 7 and 8 for sensing the presence of the remained hot water. With such an arrangement, an intermittent display caused by a disturbance of the temperature sensors is eliminated, a rapid variation of display of the remained hot water amount not corresponding to a state of use of the hot water is eliminated and the reduction of the temperature of the remained hot water is displayed in sequence in a form of reduction of the amount of the remained hot water.</p> |
